Severity of withdrawal symptoms from caffeine also varies substantially from person to person. It’s probably not directly killing anyone, but for some people it can be brutally unpleasant and disabling for at least several days.
Then there’s the beverage industry who pointed out there’s caffeine in tea leaves and other plant material and that it’s not a threat: (1) US vs 40 barrels and 20 kegs of Coka-cola. Ultimately reducing the amount of caffeine in soft-drinks.
Round and round we go allowing companies to use chemicals to keep us buying their consumables.
(1) https://en.wikipedia.org/wiki/United_States_v._Forty_Barrels...